Bosch Rexroth 10 Series - Malfunction Table

RE 91485-01-B/2021-11-18, BoschRexrothAG
Troubleshooting | A10FZO/G, A10VZO/G 65/72
14�2 Malfunction table
Tabelle 31: Axial piston unit malfunction table
Malfunction Possible cause Remedy
Unusual noises Insufficient air bleeding of the hydraulic
system
Fill the axial piston unit, suction line for the
hydraulic pump and the reservoir
Completely air bleed the axial piston unit and
hydraulic system
Check correct installation position
Insufficient suction conditions,
e.g.,insufficient dimensioning of the suction
line, viscosity of the hydraulic fluid too high,
suction height too high, suction pressure
too low, foreign particles in the suction line,
impermissible filter in the suction line
Machine/system manufacturer: Check the
system, e.g.optimize inlet conditions,
use suitablehydraulic fluid
Fill the suction line with hydraulic fluid
Remove foreign particles from the suction line
Drive speed too high Machine/system manufacturer:
Reduce drive speed
Wrong direction of rotation Machine/system manufacturer: Check correct
direction of rotation, seechapter7.5.1
"Preparation" on page41
Improper mounting of the axial piston unit Check the mounting of the axial piston
unit according to the specifications of the
machine/system manufacturer – observe
tightening torques
Improper mounting of assembled parts,
hydraulic lines or improper installation of the
coupling
Fasten assembled parts according to the
parameters provided by the coupling fitting
manufacturer
Resonances due to adefective or unsuitable
elastic coupling
Check the specification of the elastic coupling
and/or replace defective or worn coupling
Valve and controller vibrate Optimize the adjustment of the controller of
the axial piston unit and the pressure limitation
in the hydraulic system
Mechanical damage to the axial piston unit
(e.g.bearing damage)
Replace axial piston unit
Contact BoschRexroth Service
Increased, unusual vibration Bearings worn Contact BoschRexroth Service